单选题 Advertising has its origin in ______.

A、 shop window displays and the wrapping of goods
B、 face to face contact between sellers and buyers
C、 the communicative capabilities of a trained salesperson
D、 articles in newspapers and magazines

【正确答案】 B

【答案解析】由第二段最后一句话可知，广告来源于市场上买卖双方面对面的接触。